PM6641 Series

Monolithic VR for Chipset and DDR2/3 Supply for Ultra-Mobile PC (UMPC) Applications

Catalog

Monolithic VR for Chipset and DDR2/3 Supply for Ultra-Mobile PC (UMPC) Applications

Part	Applications	Mounting Type	Voltage - Output [Min]	Voltage - Output [Max]	Supplier Device Package	Package / Case	Voltage - Input [Max]	Voltage - Input [Min]	Number of Outputs	Operating Temperature [Min]	Operating Temperature [Max]
STMicroelectronics PM6641TR	Converter DDR	Surface Mount	0.8 V	5.5 V	48-VFQFPN (7x7)	48-VFQFN Exposed Pad	5.5 V	2.7 V	3	0 °C	85 °C

Catalog

Monolithic VR for Chipset and DDR2/3 Supply for Ultra-Mobile PC (UMPC) Applications

Description

The PM6641 is a monolithic voltage regulator module specifically designed to supply DDR2/3 memory and chipset in ultra-mobile PC and real estate constrained portable systems. It integrates three independent, adjustable, constant frequency buck converters, a ±2 Apk low drop-out (LDO) linear regulator and a ±15 mA low noise buffered reference. Each regulator provides basic UV and OV protections, programmable soft-start and current limit and active soft-end. Pulse-skipping technique is performed to increase efficiency at very light load.